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Image processing device and image processing method

一种影像处理、影像的技术，应用在图像通信、用属性填充平面、电视等方向，能够解决难以准确地描摹出、无法充分地遮蔽保护对象物等问题，达到提高自由度、抑制装置结构增大的效果

Active Publication Date: 2015-10-14
JVC KENWOOD CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned method of dividing a photographed image into blocks and setting a masked area, the shape of the masked area is limited to a shape obtained by combining rectangles.
Therefore, it is difficult to accurately trace the image of the object to be protected, and sometimes the object to be protected cannot be sufficiently covered

Method used

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  • Image processing device and image processing method
  • Image processing device and image processing method
  • Image processing device and image processing method

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Embodiment Construction

[0029] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0030] figure 1 It is a block diagram showing the configuration of the video processing device according to the embodiment of the present invention. Such as figure 1 As shown, the video processing device 1 of this embodiment includes a video acquisition unit 2 , an operation input unit 3 , a mask information generation unit 4 , a mask unit 5 , and a monitor 6 .

[0031] The video acquisition unit 2 has an imaging function, and outputs a video signal composed of a luminance signal and color difference information obtained by photographing a subject, and a synchronization signal thereof. The synchronization signal includes a horizontal synchronization signal, a vertical synchronization signal and a clock signal. In addition, the video acquisition unit 2 may also acquire the video signal captured by the imaging device and its synchronous signal from the outside.

[003...

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Abstract

A mask information generator 4 carries out the following processing: (1) defining lines which become respective sides of a polygon of which three or more points on a display screen designated by user's operation become vertices; (2) calculating a value of a coordinate in a vertical direction on each of the lines which has a value of a coordinate in a horizontal direction of each pixel designated by a counter which designates a coordinate of each pixel in an image signal based on a synchronization signal thereof; and (3) comparing a value of the coordinate designated by the counter in the vertical direction of each pixel with the calculated value of the coordinate on each of the lines, to determine whether or not each pixel in the image signal is included in a mask region which is a region within the polygon surrounded by the lines. A masking unit 5 carries out masking using a mask image with respect to each pixel included in the mask region.

Description

technical field [0001] The present invention relates to an image processing device and an image processing method for masking a part of an image. Background technique [0002] When monitoring a public place using a surveillance camera, it is necessary to consider not disclosing an individual's house or the like in order to protect privacy. Therefore, masking processing is performed on a part of the image captured by the surveillance camera. [0003] For example, a technique is known in which a photographed image is divided into blocks, a masking area is set by designating whether to perform masking in units of blocks, and masking processing is performed on the image in the masking area. [0004] However, in the above method of dividing a captured image into blocks and setting a masked area, the shape of the masked area is limited to a shape obtained by combining rectangles. Therefore, it is difficult to accurately trace the image of the object to be protected, and the obje...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/225H04N5/232H04N5/262H04N7/18
CPCG06T11/40H04N7/18H04N21/4318
Inventor 佐藤博幸
Owner JVC KENWOOD CORP